Cubs: We’ll put up see-through sign if rooftops won’t agree not to sue

The Cubs threatened Thursday to take immediate advantage of the authority the City Council gave them to put up a 650-square foot see-through sign in right-field at Wrigley Field if rooftop club owners won’t agree not to sue to block the stadium renovation project.

Cubs spokesman Julian Green issued the thinly veiled threat after the Commission on Chicago Landmarks authorized a Class L property tax break for the 99-year-old stadium that could save the team $8 million over 12 years.

Team attorneys claim Wrigley is now valued at $19.2 million and $32 million, including the land beneath the stadium.

“We will not start renovations to the ballpark until we resolve the remaining issues with the rooftops. However, that does not preclude us from putting up signs in the outfield,” Green said. “The video board [in left-field] will obviously take some time [because of the need to develop video programming]. But, the right field sign — that one we could move forward with pretty quickly.”